Top network posts

• 59 An illusionist and their assistant are about to perform the following magic trick
• 59 7 fishermen caught exactly 100 fish and no two had caught the same number of fish. Then there are three who have together captured at least 50 fish.
• 51 How do you correctly reason that this directed graph is acyclic?
• 48 How to prove that $\sqrt{2+\sqrt3}-\sqrt{2-\sqrt3}=\sqrt2$ without squaring both sides
• 46 Polynomial division: an obvious trick? [reducing mod $\textit{simpler}$ multiples]
• 43 For which $n\in\Bbb N$ can we divide $\{1,2,3,...,3n\}$ into $n$ subsets each with $3$ elements such that in each subset $\{x,y,z\}$ we have $x+y=3z$?
• 43 How do you explain to a 5th grader why division by zero is meaningless?
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